Sewing-machine.



PAT-'ENTED DEC.- 18,1906.

L ONDQRDONK SEWING MACHINE. APPLIQATIOK FILED MAY 21, 1901. RENEWED JULY12, 1906.

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L. UNDERDONK. Y

SEWING MACHINE. APPLICATION FILED MAY 21, 1901. RENEWED JULY 12, 1906.

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- /NVENTO/? I ATTORNEYS WITNESSES:

No. 839,078, YPATENTBD DEC. 18, 1906.- L. ONDERDONK.

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LIAN-SING ONDERDONK, OF NEW Yon-K,

N. Y}, nssiesoaro UNION SPECIAL SEWING MAcHmE co, or CHICAGO; ILLlNOIS,A coRroaATIoN or "iLL Nms;

Specification of Letters fatefit';

ISEWINIG-MIACI'LHIFI'EJ;

iipplicatien flied my 21. 1901. Renewed July 12} 966. saeim 3251888;

a; all whom, it camera; 9

- 1' 'Be it known that L'Lansiue Ommnnonic, a citizen of the UnitedStates, residing at New York, in'the county'of New York, State of NewYork, have invented certain new and useful Improvements in'SewingMach1nes, of

' which the following is a description,-'refer encebeing had to theaccompanying draw- 1 ings, and to thereon. v v

My invent on relates to an improvement in the lettersof reference marked4 sew ng-machines,- and particularly to what may be called a postmac'hine,,in which the 'work-plateis a vertically-arranged postcontaining the feeding-and looper mechanisms and upon the upper end 'ofwhich post the cloth-plate is supported.

The presentinvention is an embodiment of i the apparatus shown,described, and claimed inanapplication filed'by me of even dateherewith, Serial 'No.- 61,272, the features herein claimed. being suchas render the same of value for post machines per se.

Said invention therefore consists in the various matters hereinafterdescribed, and referred to in the appended claims. In the accompanyingdrawings, which illustrate the invention, Figure '1 is a side ele'vationof a sewing-machine embodying my improved features, part of the samebeing broken away and part being shown in'section.

' Fig. 2 is a plan view of .the same, partly in section. Figs. 3 and4are respectively right and left hand side elevations, partly in sec- 4 IIn the drawings,

tion, of the post and operating parts for the looper and feedingmechanisms.

ir'epresents the base or standard, from which rises the gooseneck B, andA is the case member, which incl'oses the greater portion of thedriving-shaft 10, to whichpower is applied in the usual manner.

At the lefthand end of the case member A rises the hollow post orWonk-support A supporting on its upp'erendthe cloth-plate and 1 withinwhich thefeeding and looper mechansms and their operative connections'tothe I driving-shaft are contained.

The horizontal driving-shaft C is mounted in bearings in the standard Aand case memher A and at its left-hand end within the lower portion ofthe post A is provided with two eccentrics (1 11", the former carrying awrist-pin d 'in the form of a ball. Y

The f eed-dog F is secured in the upper end eccentric d on the 'driving-s of the main feed-operating. leverF, the lower end of said leverbeing strapped to the larger ing the up-and-down motion to the feedoog.This lever F is further acted upon, the auxiliary lever F forked at itslower end f 4 to straddle the smaller eccentric d of drivingscrew f Saidlever F is further provided between its ends with a longitudinalfulcrumslot f through which rounded portion of the in erum-bolt f,hav1'ng a'flattened threaded end, as shown. in 3,

mounted adjustably in an inclined vertically- 17 this bolt f G thethrow-of the feed-dogmajy be disposed slot a in the post A By adjustinglengthened or shortened to vary thestitc It will be seen that'the mainlevereflects also raises the lever F, the latterslidingon the bolt f andthat in the further rotation of asses the enlarged,

Patented Dec. 13,- mos.

aft C thus giv- 'sh'aft C. This lever is pivoted at its upper end to theright side of lever F by-ap1vot-- 1 the raising and lowering of thefeed-dog and r7 l the eccentrics cl d the auxiliary feed-lever F will berocked on its axisf, so as to rock-the.

' main lever and impart the forward and back-v ward movements to thefeed-dog.

L is a short shaft mounted to slide and {rock in bearings formed onopposite sides of the vertical 0st A and provided .with'a socket or socets for the reception ofthe shanks of a looper or loopers l},Thesesockets may be formed 'inse arate: collars or clamps, but arepreferably iormed in a clamp Z, embracing the looper-shaft, -which'clamp is rovided' witha ball Z engaged by a.

soc et 1 on-theupper end of the looperk operating lever L, the lower endof the lever L having a socket Z to receive the ball on the wrist-pin dcarried by eccentric (Z To impart the necessary sliding orneedleavoiding movements to the looper-su porting shaft, I )rovide atransverse vertically- Having thus described my invention, what I v -Iclaim as new, and desire to secure by Letters Patent,'is

1. A sewing-machine, comprising a casing member, and a hollowwork-supporting post projecting vertically therefrom, a dr1vingshaftwithin said casing member and projecting into said hollow post, havingtwo cams or eccentrics and a wrist-pin therein, a feed-dog,

a vertically-arranged feed-operating lever supportin said feed-dog onitsupper end and at its lower end operatively en agin one of the cams oreccentrics, an anxi iary ever operatively connected with the other camor eccentric, a loo er mechanism with connec tions between-t 1e same andthe wristin on the driv ng-shaft, sald'feeding and 00 er 'mechanismbeing arranged within the 1101 ow vertical post; substantially asdescribed.

- 2. A sewing-machine, comprising a casing member, and a hollowwork-supporting post, projectin vertical-1y therefrom, a drivingsh'aftwit in said casing member, and projecting into said hollow post, andhaving two cams or eccentrics and a wrist-pin, a feedin mechanismincluding a feed-dog supported at the upper end of the work-supportingpost i connections between the ,feed-dog and .the cams or eccentrics, aslidiii and rocking looperesupport, a looper carrie thereby and alooper-operating lever pivotally connected two cams or ecceIrtricsa-ndawrist-pin, a feed-.

ing mechanism operatively connected-with both the cams or eccentrics andincluding a,

feed-deg located in the uppertendof said work-sup ort post and a loopermechanism operative y connected with the wrist+pin and a looper locatedin the'up er-end' of said postpperated thereby, said feeding and loopermechagiism being contained within the 1101- low work-supporting post;substantially as described.

4. .A sewing-machine comprising a casing or framework having ahorizontal and a vertical member, and a shaft journale in the horizontalmember, and provided at t ie base of the vertical member with two camsor eccentrics and a wrist-pin, of a main feed-ope!- ating leverconnected at its lower end to one of said cams or eccentrics, a feed-doglocated in the up or end of said vertical member and connecte withsaidfeed-operating lever, an auxiliary lever slidingly pivoted betweenits ends to vertical base member, pivoted at its up er end to the mainfeed-opcrating lever, an embracing with its lower forked or slotted endthe other of said cams or eccentrics, a rocking and sliding looper-shaftat the upper end of the vertical case member, and a looperoperatinglever connected at its lower end to the said wrist-pin, pivotallyconnected at its upper end to the said loope1-shalt and having a pivotedand sliding connection below the looper-shaft with, said vertical easemember, said feeding and looping mechanism being entirely containedwithin the vertical member; substantially as described.

5. A sewing-machine, comprising a casing member, and a hollowwork-supporting post,

projectii vertically therefrom, a drivingshaft witiin said casingmember, and projecting into said hollow. 0st, a feeding mechanismincluding a feed dog located at the upper end of the work-supportin postand with connections between the fee ing mechanism and thedriving-shaft, a sliding and rocking looper-support, and alooper-operating ever pivotally connected with the looper-support andhavin also pivotal con nection with said vertica post, and operative lyconnected at its lower end with the drr n -shaft, said feeding andloopcr mechan. n. eing locatedwithin the hollow vertio'al post;substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

LANSING ON DERDON K.

Witnesses:

F. A. N ORTH, M. VAN W AGN an.

